Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/28/2023   09:08:23   (   0.01,-104.74) (   0.08,-104.95)   23.97                80
 06/29/2023   08:47:22   (  -0.02,-104.74) (  -0.99,-100.51)  483.25                80
 06/30/2023   21:09:50   (   0.02,-104.72) (  -0.28,-105.91)  135.86                80
 07/01/2023   20:54:08   (   0.02,-104.73) (   0.74,-101.46)  371.99                80
 07/03/2023   09:16:30   (  -0.02,-104.75) (   0.43,-106.85)  238.79                80
 07/04/2023   08:55:27   (  -0.02,-104.75) (  -0.53,-102.39)  268.56                80
 07/05/2023   21:17:56   (   0.02,-104.72) (  -0.68,-107.80)  351.56                80
 07/06/2023   21:02:13   (   0.01,-104.72) (   0.34,-103.35)  156.49                80
 07/08/2023   09:24:35   (  -0.00,-104.75) (   0.88,-108.73)  453.07                80
 07/09/2023   09:03:31   (   0.00,-104.75) (  -0.08,-104.27)   54.96                80
 07/11/2023   21:07:38   (   0.00,-104.73) (  -0.09,-105.23)   57.09                80